Why is resin print 3D model so warping?

Resin 3D prints warp mainly from internal stress caused by uneven UV curing or rapid post-print temperature changes. Uneven curing happens when thick sections or overhangs get inconsistent UV light exposure, leading to imbalanced hardening. Rapid temperature shifts—like moving a hot print to a cold surface—make resin contract unevenly, pulling the model out of shape. To reduce warping, add more supports to improve light distribution or let the print cool slowly in the curing chamber before handling.